$ git clone -n https://src.fedoraproject.org/rpms/mediaconch.git /var/lib/mock/f40-build-2297166-56445/root/chroot_tmpdir/scmroot/mediaconch
Cloning into '/var/lib/mock/f40-build-2297166-56445/root/chroot_tmpdir/scmroot/mediaconch'...
$ git fetch origin c27b7aabe05036fc2995c608b0e2409cac8c2d37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mediaconch
 * [new ref]         c27b7aabe05036fc2995c608b0e2409cac8c2d37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c27b7aa Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild